Pop-Cola Acids and Tooth Erosion: An In Vitro, In Vivo, Electron-Microscopic, and Clinical Report
Identifieur interne : 004C03 ( Main/Exploration ); précédent : 004C02; suivant : 004C04Pop-Cola Acids and Tooth Erosion: An In Vitro, In Vivo, Electron-Microscopic, and Clinical Report
Auteurs : Amirfirooz Borjian [Canada] ; Claudia C. F. Ferrari [Canada] ; Antoni Anouf [Canada] ; Louis Z. G. Touyz [Canada]Source :
- International Journal of Dentistry [ 1687-8728 ] ; 2010.
Abstract
Url:
DOI: 10.1155/2010/957842
PubMed: 21151663
PubMed Central: 2997506
Affiliations:
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Pop-Cola Acids and Tooth Erosion: An <italic>In Vitro</italic>
, <italic>In Vivo</italic>
, Electron-Microscopic, and Clinical Report</title>
<author><name sortKey="Borjian, Amirfirooz" sort="Borjian, Amirfirooz" uniqKey="Borjian A" first="Amirfirooz" last="Borjian">Amirfirooz Borjian</name>
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<country xml:lang="fr">Canada</country>
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<author><name sortKey="Ferrari, Claudia C F" sort="Ferrari, Claudia C F" uniqKey="Ferrari C" first="Claudia C. F." last="Ferrari">Claudia C. F. Ferrari</name>
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<author><name sortKey="Touyz, Louis Z G" sort="Touyz, Louis Z G" uniqKey="Touyz L" first="Louis Z. G." last="Touyz">Louis Z. G. Touyz</name>
<affiliation wicri:level="1"><nlm:aff id="I1">McGill Faculty of Dentistry, Montreal, PQ, H3A 2B2, Canada</nlm:aff>
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<series><title level="j">International Journal of Dentistry</title>
<idno type="ISSN">1687-8728</idno>
<idno type="eISSN">1687-8736</idno>
<imprint><date when="2010">2010</date>
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<front><div type="abstract" xml:lang="en"><p><italic>Introduction</italic>
. Manufactured Colas are consumed universally as soft drinks. Evidence about the acid contents of Cola-beverages and its effects on teeth is rare. <italic>Aim</italic>
. To assess (i) cola acidity and buffering capacity <italic>in vitro</italic>
, (ii) tooth erosion after swishing with colas <italic>in vivo</italic>
(iii) scanning electron <italic>microscopic effects</italic>
on teeth of colas, and tooth-brush abrasion, and (iv) report a
<italic>clinical case</italic>
of erosion from cola consumption. <italic>Materials and Methods</italic>
. (i) We measured six commercially available pop
“Cola beverages”, pH, and buffering capacities using a pH-Mettler Automatic Titrator, with weak solution of Sodium Hydroxide (ii) two cohorts, one <italic>with teeth</italic>
, the second <italic>without teeth</italic>
rinsed with aliquots of Cola for 60 seconds. Swished cola samples tested for calcium and phosphorus contents using standardized chemical analytical methods (iii) enamel, dentine, and the enamel-cemental junction from unerupted extracted wisdom teeth were examined with a scanning electron microscope after exposure to colas, and tested for tooth-brush abrasion; (iv) a clinical case of pop cola erosion presentation, are all described. <italic>Results</italic>
. Comparisons among pop colas tested <italic>in vitro</italic>
reveal high acidity with very low pH. Buffering capacities in millilitres of 0.5 M NaOH needed to increase one pH unit, to pH 5.5 and pH 7 are reported. Rinsing <italic>in vivo</italic>
with pop cola causes leeching of calcium from teeth; SEM shows dental erosion, and pop-cola consumption induces advanced dental erosion and facilitates abrasion. <italic>Conclusions</italic>
. (i) Pop-Cola acid activity is below the critical pH 5.5 for tooth dissolution, with high buffering capacities countering neutralization effects of saliva; (ii) calcium is leeched out of teeth after rinsing with pop colas; (iii) SEM evidence explains why chronic exposure to acid pop colas causes dental frangibles; (iv) a <italic>clinical case</italic>
of pop-cola erosion confirms this.</p>
</div>
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